Number | Date | Country | Kind |
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8612605 | May 1986 | GBX |
Number | Name | Date | Kind |
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4682196 | Sakai et al. | Jul 1987 |
Number | Date | Country |
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2056166 | Mar 1981 | GBX |
Entry |
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Yokoyama et al, Jap. Jnl. of Appl. Phys., Vol. 23, No. 5, May 1984, pp. L311-L312, "Tunnelling . . . Heterojunctions". |